I suspect you have your causation backwards. People created / joined the Freikorps and other quasi-fascist institutions to fight the threat of Communism. Viable international Communism (~1917) predates the fall of the Kaiser - and the Freikorp had no reason to exist when the existing authorities were already willing and capable of fighting Communism.

More generally, the natural reading of the Jedi moral rules is that the risk of evil from strong emotions was so great that liberal democrats should be prohibited from feeling any (neither anger-at-injustice nor love)